We are Chiesi

A global biopharmaceutical company with a clear purpose.

For over 90 years, we have been focusing on science-led innovation in respiratory health, rare diseases, and specialty care, engaging patients early and listening to their experience along their journey.

We are passionate about how we do business: shaped by our values, we work side by side with patients, caregivers, and the entire healthcare community to provide unique, sustainable solutions and improve health and quality of life.

True care means being there at every step.

Our commitment goes far beyond medicine. We stand alongside patients, not just as scientists and healthcare partners, but as fellow human beings.

Because every breath, every breakthrough and every act of care matters.

[Air](/content/en/our-focus/air "Air"/index.html)
[Rare](/content/en/our-focus/rare "Rare"/index.html)
[Care](/content/en/our-focus/care "Care"/index.html)

Highlights

Chiesi Group Completes Acquisition of KalVista Pharmaceuticals
Parma, Italy and Framingham, Mass., USA – 11 June, 2026 – Chiesi Group (“Chiesi”), an international research-focused biopharmaceutical group and certified B Corp, today announced the completion of its acquisition of KalVista Pharmaceuticals, Inc. (“KalVista”). KalVista is now part of Chiesi Group and will contribute to the growth of the Rare Diseases business unit, focused on research, development and commercialization of therapies for rare and ultra-rare conditions.

With the completion of the transaction, Chiesi assumed ownership of EKTERLY® (sebetralstat), the first and only oral, on-demand treatment for hereditary angioedema (HAE) attacks in adults and adolescents aged 12 years and older. EKTERLY is already approved in the United States, United Kingdom, European Union, Japan and other regions, with ongoing studies exploring its use for treating HAE attacks in children aged 2 to 11, and multiple regulatory applications under review in key global markets.

About EKTERLY® (sebetralstat)

EKTERLY (sebetralstat) is a novel plasma kallikrein inhibitor approved in the United States, European Union, United Kingdom, Switzerland, Australia, Singapore and Japan for the treatment of acute attacks of hereditary angioedema (HAE) in people 12 years of age and older.

About Hereditary Angioedema

Hereditary angioedema (HAE) is a rare genetic disease resulting in deficiency or dysfunction in the C1 esterase inhibitor (C1INH) protein and subsequent uncontrolled activation of the kallikrein-kinin system. People living with HAE experience painful and debilitating attacks of tissue swelling in various locations of the body that can be life-threatening depending on the area affected. Treatment guidelines recommend treating attacks as early as possible to prevent progression of swelling and shorten the time to attack resolution, and to consider treatment for all attacks, regardless of anatomic location or severity.

About Chiesi Group

Chiesi is a research-oriented international biopharmaceutical group that develops and markets innovative therapeutic solutions in respiratory health, rare diseases, and specialty care. The company’s mission is to improve people’s quality of life and act responsibly towards both the community and the environment.

By changing its legal status to a Benefit Corporation in Italy, the US, France and Colombia, Chiesi’s commitment to creating shared value for society as a whole is legally binding and central to company-wide decision-making. As a certified B Corp since 2019, Chiesi is part of a global community of businesses that meet verified standards of social and environmental impact. The company aims to reach Net-Zero greenhouse gases (GHG) emissions by 2035.

With 90 years of experience, Chiesi is headquartered in Parma (Italy), with 31 affiliates worldwide, and counts more than 7,900 employees. The Group’s research and development centre in Parma works alongside 6 other important R&D hubs in France, the US, Canada, China, the UK, and Sweden.

For more information, visit www.chiesi.com or the website of your local Chiesi affiliate.